聚晶金刚石的ELID精密磨削试验研究  

Research on ELID precision processing technology of polycrystalline diamond

作　　者：关佳亮[1] 朱磊[1] 孙鲁青[2] 陈玲[1] 

机构地区：[1]北京工业大学机械工程与应用电子技术学院,北京100124 [2]山东省滨州学院机电工程系,山东滨州256600

出　　处：《制造技术与机床》2016年第1期89-93,共5页Manufacturing Technology & Machine Tool

基　　金：国家自然科学基金委员会-中国工程物理研究院联合基金资助项目(10676001)

摘　　要：针对聚晶金刚石刃口加工的精度低、效率低、刃磨质量差的问题,采用同步电解修锐(ELID)精密磨削技术,对聚晶金刚石进行了精密磨削试验研究。首先,通过单因素试验探究砂轮粒度、磨削角度、磨削深度、砂轮转速以及工件移动速度对加工刃口质量的影响;然后,利用正交试验获得各因素的优组合与优水平,确定了最优工艺参数;最后,以最优试验参数对聚晶金刚石刃口进行精密磨削加工,获得刃口崩缺平均值0.042μm的加工表面。研究表明:应用ELID精密磨削加工工艺,当采用与被磨金刚石粒度相当或略小粒度的铸铁结合剂金刚石砂轮,砂轮转速为1 400 r/min、45°磨削角、磨削深度为0.1μm、进给速度为2 m/min时,磨削效果最佳。According to the problems of low accuracy,low efficiency and poor quality of grinding that given in polycrystalline diamond cutting edge processing,on-line electrolytic dressing（ ELID） precision grinding processing technology is used to carry on precision grinding experimental study for polycrystalline diamond. First,with the method of single factor experiment,explores the influence of grinding wheel granularity,grinding angle,cutting depth,speed of grinding wheel and workpiece speed on cutting edge quality. Then,uses orthogonal test to obtain optimal combination and optimum level of various factors,so as to determine the optimal process parameters. Finally,for polycrystalline diamond precision grinding processing with optimal parameters,gets the edge collapse processing surface with low average of0. 042μm. Study shows that while applying ELID precision grinding processing technology,uses cast iron fund corundum grinding wheel that is slightly lower than or equal to ground diamond granularity,speed of grinding wheel is 1 400 r / min,grinding angle is 45°,cutting depth is 0. 1 μm,workpiece speed is 2 m / min,the best grinding effect can be obtained.

关 键 词：聚晶金钢石刃口 ELID磨削 刃口崩缺 磨削参数 

分 类 号：TH161.14[机械工程—机械制造及自动化]